Please solve using simple formulas, this is simple physics and make sure the writing is readable thank you.

Show clear and complete solutions rounded to the correct number of significant figures. 1. A positive of charge $ 1 = U.30 is placed 12 m west of another positive charge 42 = 0.49 . A third negative charge $'3 = -U.2 is placed 5.0 m north of 92. What is the net electric force on "? (5 marks) 2. Two charges, one of charge +1.5 @ 1072 C and the other of charge -2.7 @ 10" C, are 25.0 cm apart. The positive charge is to the left of the negative charge. Determine where a third charge should be located on the line connecting the two charges so that it experiences a net force of zero due to these two charges. (4 marks)11. A conductor is located between the poles of a horseshoe magnet. Current flows in the direction indicated by the arrow on the diagram. Explain how to determine in which direction the conductor will move. (2 marks) N S Horseshoe magnet conductor 12. An electron with speed 322 m/s moves through a magnetic field of 1.9 T. The magnitude of the force on the electron is 2.73 x 10-17 N. What angle does the electron's velocity make with the magnetic field? (3 marks) 13. A particle of charge q = -4.9 microcoulombs has a speed of 620 m/s. The particle lies in the x-y plan and travels at an angle of 52 with respect to the x-axis. There is a uniform magnetic field of magnitude 1.3 T parallel to the y-axis. What are the magnitude and direction of the magnetic force on the particle? (4 marks)